parking control system (LED Display)

A.LED Display' of parkingcontrol system: 1. Three digits are to show the available lots number and the arrow is to show the direction. 2. The led indoor screen will be installed at the crossings of car park. 3. The outdoor led screen will be installed at the entrance of car park or other outside place. Pangdonglai palaza-241 lots ShenZhen Wal-mart--1800lots B.How Parking Control System Works: Firstly, UD takes use of ultrasonic wave to detect the car space to see if it is occupied by vehicles and transfer relative command to LED Indicator which will turn from green to RED when occupied, or it will keep GREEN; meanwhile, the UD transmit its status message to ZCU immediately, and ZCU will collect and forward the information to CCU; CCU processes these data and sends the relevant command to ZCU and LED panel. 3.We have the most successful cases in China, pls kindly note below about some of them Krakow airport ,poland:1160 lots